haha well i would say eyes with central heterochromia (or heterochromia in general ) are the rarest, basically it means theres two different colors in one eye (regular heterochromia usually meaning diferent colors per eye)

>:D that said i have green/teal/hazel eyes (in that order outer to inner and they do change under certain conditons such as humidity and mood etc.)

most common....brown, most people i know have brown eyes actually.

least common actual color...hmmm...violet/red havent seen anyone with these. green seems common to me but only really cause my principals eyes are so green you think theyre glowing.

my friend sonia has these awesome pair of eyes LOL. They go different shades of green and blue (like from really light to really dark, and all in between). Sometimes they're grey. Sometimes they're speckled with like bits of gold in the green or blue. Sometime green and blue is mixed! Sometimes they're this really light hazel colour. Oh man it just trips me out aye... She half Scottish i think.

i think im gona take a pic everytime i see her now just to prove this. XD anyway, that was the rarest...though its not really one colour...

rare probably have to be grey...i guess some blue or green shades are mistaken as grey...but i still call it grey.

Rarest: Gold (A very light shade of Hazel) very pretty on my friend. I have gray eyes which change colour to whatever I wear. I wore purple and they turned lilac. If I wear bright blue they will go bright blue.